I have a filter which is being used to filter a table by "Region". The regions are West,South West, North,North West, .... and so on.

In the filter I have enable the option of Select All. What i want to achieve is that when someone selects "All" from the dropdown the filter takes in the value as just North, and not all the regions. Is this possible? I would greatly appreciate the help.

Thanks for the help. I wanted to go this route initially before posting here, but the problem is a little more complicated than that. The filter "Region" is a global filter and applies to other vizzes on the dashboard. The user also wants to be able to select multiple regions at once to look at the product data across those regions. By implementing your solution, it will limit selecting of multiple regions at once. Is there another way of achieving the same with multi select functionality?Thank You!

Parameters don't allow for multiple selections. And the <all> value on a filter can only be used for selecting all values, it's not flexible like a parameter. I can't think of a way to achieve exactly what you're looking to do.